I am researching my family tree and have Krushka's in my history from perhaps around your region of Tassie. Derby, Ringarooma. Charles Augusta Krushka married Catherine Horton in 13th dec 1863 they had I believe eight children, one of whom was herbert who married a Gladys Cunningham in 1910. Also married Grace Amy Kerr 1921/22. He had a total of thirteen children beteen his two wives. Have you any info to share.